623206420321 has 8 divisors (see below), whose sum is σ = 632524227840. Its totient is φ = 613889089968.

The previous prime is 623206420289. The next prime is 623206420351. The reversal of 623206420321 is 123024602326.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 623206420321 - 2⁵ = 623206420289 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (623206420351) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3195600 + ... + 3385006.

It is an arithmetic number, because the mean of its divisors is an integer number (79065528480).

Almost surely, 2^623206420321 is an apocalyptic number.

It is an amenable number.

623206420321 is a deficient number, since it is larger than the sum of its proper divisors (9317807519).

623206420321 is a wasteful number, since it uses less digits than its factorization.

623206420321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 238583.

The product of its (nonzero) digits is 20736, while the sum is 31.

The spelling of 623206420321 in words is "six hundred twenty-three billion, two hundred six million, four hundred twenty thousand, three hundred twenty-one".